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Life Science Review 1.2
Test Description: Scientific Methods
Instructions: Answer all questions to get your test result.
1) The students will eat lunch on time today is an example of a(n)
A
question
B
observation
C
hypothesis
D
prediction
2) When using scientific methods, scientists
A
always end with communicating results
B
can only use the steps once
C
always go in the exact order of steps
D
can use all or some of the steps
3) Which of the following is not a scientific method?
A
make assumptions
B
analyze results
C
draw conclusions
D
form a hypothesis
4) The closeness of a measurement to its true value is
A
accuracy
B
estimate
C
precision
D
prediction
5) Controlled experiments test
A
Only the experimental group
B
Only 1 variable at a time
C
Only the control group
D
2 variables at a time
6) Hypothesis: Water can dissolve more salt when it is hot. The amount of salt dissolved is the
A
independent or responding variable
B
independent or manipulated variable
C
dependent or responding variable
D
dependent or manipulated variable
7) Observations are not
A
measured, described, and recorded
B
diverse ways in which scientists study the natural world
C
accurate
D
information gathered with the five senses
8) A conclusion
A
is a summary of results
B
shows an effect from the independent variable only
C
shows no effect from the independent variable
D
is a statement of how variables are measured
9) 4 students ran a race in the following times: 16 s, 20 s, 22 s, and 26 s. What was the average time?
A
23 s
B
20 s
C
22 s
D
21 s
10) What variable is plotted on the x-axis of a line graph?
A
dependent or responding variable
B
independent or responding variable
C
independent or manipulated variable
D
dependent or manipulated variable
*select an answer for all questions
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